Physicochemical katundu wa Cellulose Ethers

Ma physicochemical properties a cellulose ethers, omwe amapangidwa kuchokera ku cellulose kusinthidwa kudzera munjira zama mankhwala, amasiyana malinga ndi zinthu monga mtundu wa cellulose ether, digiri ya m'malo (DS), kulemera kwa maselo, ndi mawonekedwe ena apangidwe. Nazi zina zazikulu za physicochemicals zomwe zimagwirizanitsidwa ndi cellulose ethers:

1. Kusungunuka:

• Kusungunuka kwamadzi:Ma cellulose ethersNthawi zambiri zimakhala zosungunuka m'madzi, zomwe zimakhala zomveka komanso zowoneka bwino zikasakanikirana ndi madzi. Kuchuluka kwa kusungunuka kumatha kutengera mtundu wa cellulose ether ndi DS yake.

2. Kapangidwe ka Chemical:

• Ma cellulose ethers amasunga mawonekedwe a cellulose, opangidwa ndi mayunitsi obwerezabwereza olumikizidwa ndi ma β-1,4-glycosidic bond. Kusintha kwa mankhwala kumayambitsa magulu osiyanasiyana olowa m'malo, monga hydroxyethyl, hydroxypropyl, kapena carboxymethyl, kutengera mtundu wa cellulose ether.

3. Digiri ya Kusintha (DS):

• DS imawonetsa kuchuluka kwamagulu olowetsedwa m'malo pa unit ya anhydroglucose mu tcheni cha cellulose. Zimakhudza kwambiri ma cellulose ethers, monga kusungunuka kwamadzi, kukhuthala, ndi magwiridwe antchito.

4. Kulemera kwa Maselo:

• Kulemera kwa ma cellulose ethers kumasiyanasiyana malinga ndi momwe amapangira komanso ntchito yomwe akufuna. Maselo olemera a cellulose ethers, mwachitsanzo, amatha kuwonetsa katundu wosiyanasiyana wa rheological ndi mamasukidwe akayendedwe poyerekeza ndi ocheperako olemera a maselo.

5. Makanema:

• Ma cellulose ethers amagwira ntchito ngati zokhuthala bwino, ndipo kukhuthala kwawo ndi chinthu chofunikira kwambiri pamagwiritsidwe ambiri. Kukhuthala kungakhudzidwe ndi zinthu monga ndende, kutentha, ndi kulemera kwa maselo. Maselo apamwamba a cellulose ethers nthawi zambiri amathandizira kukhuthala kwambiri.

6. Zokhudza Zamoyo:

• Makhalidwe a rheological a cellulose ethers amatsimikizira kutuluka kwawo ndi mawonekedwe awo. Zimakhudzidwa ndi zinthu monga kukhazikika, kumeta ubweya, ndi kutentha. Ma cellulose ether amadziwika kuti amawonetsa machitidwe a pseudoplastic, pomwe kukhuthala kumachepa ndi kuchuluka kwa kukameta ubweya.

7. Mapangidwe a Gel:

• Ma cellulose ether ena amatha kupanga ma gels pansi pamikhalidwe yapadera, zomwe zimapangitsa kuti azigwiritsidwa ntchito ngati zolimbitsa thupi komanso zolimbitsa thupi m'mapangidwe osiyanasiyana.

8. Katundu Wopanga Mafilimu:

• Ma cellulose ether ena amawonetsa mawonekedwe opangira mafilimu, kupanga mafilimu owonda, owoneka bwino pamtunda. Katunduyu amagwiritsidwa ntchito ngati zokutira, zomatira, ndi zina.

9. Kusunga Madzi:

• Ma cellulose ethers nthawi zambiri amakhala ndi zinthu zabwino kwambiri zosungira madzi, zomwe zimawapangitsa kukhala ofunikira muzomangamanga, komwe amathandizira kuwongolera nthawi yowuma ndikuwongolera magwiridwe antchito.

10. Kutengeka kwa Kutentha:

11. Chemical Kukhazikika:

12. Kusinthika:

13. Kugwirizana:

Kumvetsetsa ma physicochemicals awa ndikofunikira kuti tigwirizane ndi ma cellulose ethers kuti agwiritse ntchito m'mafakitale monga zomangamanga, zamankhwala, chakudya, zodzoladzola, ndi kasungidwe. Opanga nthawi zambiri amapereka tsatanetsatane ndi malangizo ogwiritsira ntchito mankhwala awo a cellulose ether muzogwiritsira ntchito zosiyanasiyana.